The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 8968530 B1

PDF
Full Text
Expired
Date of Patent:
Mar. 03, 2015

Filed:

Sep. 30, 2009
Applicants:

Hisashi Hotta, Shizuoka, JP;

Tsuyoshi Hirokawa, Shizuoka, JP;

Inventors:

Hisashi Hotta, Shizuoka, JP;

Tsuyoshi Hirokawa, Shizuoka, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C25F 3/04 (2006.01); B41N 3/03 (2006.01); C25D 5/18 (2006.01); C25D 7/06 (2006.01); C25D 11/04 (2006.01); C25D 11/02 (2006.01); C25D 11/00 (2006.01); C25F 7/00 (2006.01); C25D 11/18 (2006.01);
U.S. Cl.
CPC ...
C25F 3/04 (2013.01); B41N 3/034 (2013.01); C25D 5/18 (2013.01); C25D 7/0607 (2013.01); C25D 7/0635 (2013.01); C25D 11/04 (2013.01); C25D 11/024 (2013.01); C25D 11/005 (2013.01); C25F 7/00 (2013.01); C25D 11/18 (2013.01);
Abstract

An electrolytic treatment method and electrolytic treatment device are provided for electrolytic treatment of an aluminum web W by applying an alternating current to an upstream electrode and a downstream electrode disposed along a conveying direction a. At least one of a conveying velocity v of the aluminum web W, a frequency f of alternating current applied at the upstream electrode and the downstream electrode, and/or a web conveying direction separation distance dbetween the upstream electrode and the downstream electrode are set such that the alternating current and voltage waveform applied to the aluminum web W at the far end of the upstream electrode and the alternating current and voltage waveform applied to the aluminum web W at the near end of the downstream electrode do not reinforce each other.


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